import java.util.Scanner;

/**
   Reads a string and counts all vowels contained in that string.
   Vowels are A E I O U a e i o u. 

   Input: the value of s, a string
   Output: the number of all the vowels in s
*/
public class CountVowels
{
   public static void main(String[] args)
   {      
      Scanner in = new Scanner(System.in);
      String s = in.nextLine();

      // your work here  
      int count=0;
      int l = s.length();
      for(int i=0;i<l;i++){
         if(s.charAt(i) == 'A' || s.charAt(i) == 'E' || s.charAt(i) == 'I' || s.charAt(i) == 'O' || s.charAt(i) == 'U' || s.charAt(i) == 'o' || s.charAt(i) == 'o' || s.charAt(i) == 'i' || s.charAt(i) == 'e' || s.charAt(i) == 'a')
         count += 1;
      }



      System.out.println(count);
   }
}